Matches 101 - 150 out of 260 < 1 2 3 4 5 6 >
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5804345 Photoreceptor for electrophotography  
An electrophotographic photoreceptor comprising a charge transport material and an anti-oxidant in the charge transport layer is disclosed. The transport material has a carbon atom of which the...
5709974 High speed electrophotographic imaging member  
An electrophotographic imaging member including a charge generating layer, a charge transport layer and an overcoating layer, the transport layer including a charge transporting aromatic diamine...
5707747 Amine compound and electro-luminescence device comprising same  
The present invention provides novel amine compounds useful as electron-transporting materials to be incorporated in organic electro-luminescence devices. More particularly, the present invention...
5670291 Process for fabricating an electrophotographic imaging member  
A process for fabricating an electrophotographic imaging member including providing a substrate coated with at least one photoconductive layer, applying a coating composition to the...
5645965 Symmetrical perylene dimers  
Photoconductive imaging members comprised of a symmetrical dimeric perylene as a charge generator, wherein said perylene is of the following formula wherein R is hydrogen, alkyl, cycloalkyl,...
5635324 Multilayered photoreceptor using a roughened substrate and method for fabricating same  
A photoreceptor and method eliminate interference-fringe print defect due to interference effects caused by reflected beams from various interfaces in a multilayered photoreceptor. The substrate...
5604063 Composition for charge transport layer and electrophotographic member using same  
An electrophotographic member which can give printed images of high quality and is markedly high in photoresponsiveness can be provided without using halogen solvents by using a composition for...
5587262 Photoconductive imaging members  
A photoconductive imaging member comprised of a supporting substrate, a hydroxygallium phthalocyanine photogenerator layer, a charge transport layer, a photogenerator layer comprised of a mixture...
5582949 Process for improving belts  
A process for coating flexible belt seams including providing a flexible belt having an outwardly facing surface and a welded seam, forming a smooth liquid coating on the welded seam, the liquid...
5578406 Electrophotographic photoreceptor  
An electrophotographic photoreceptor is disclosed which comprises an electroconductive substrate and a photosensitive layer formed thereon, said photosensitive layer containing as a binder resin a...
5534375 Composition for forming charge transport layer and electrophotographic member containing alkoxybenzene  
A charge transport layer formed from a composition comprising a mixed solvent containing alkoxybenzene and a charge transport material, or a photoconductive layer formed from a composition...
5529868 Electrophotographic photoreceptor  
An electrophotographic photoreceptor comprising a conductive substrate having provided thereon a photosensitive layer, wherein said photosensitive layer contains, as charge transporting material...
5521043 Hydroxygallium phthalocyanine pigments with block copolymer binders  
A photoconditive imaging member comprised of a supporting substrate, a photogenerating layer comprised of a photogenerating pigment, or photogenerating pigments dispersed in a...
5516609 Methoxy gallium phthalocyanine compound and electrophotographic photoreceptor using it  
A methoxy gallium phthalocyanine compound represented by formula (I): ##STR1## wherein X represents a chlorine atom, a bromine atom, or an iodine atom; and n represents an integer of from 0 to 4;...
5514508 Electrophotosensitive material  
The present invention provides an electrophotosensitive material having an improved sensitivity in comparison with a conventional one, obtained by combining a trinitrofluorenoneimine derivative...
5494766 Electrophotographic photoreceptor  
An electrophotographic photoreceptor which is excellent in various properties, has effectively inhibited photo-induced fatigue and has stability against repeated use, and which comprises an...
5489495 Electrophotographic photoconductor and diamine compounds for use in the same  
An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon containing a diamine compound represented by formula (I): ##STR1## wherein R 1...
5484674 Benzimidazole perylene imaging members and processes thereof  
A process which comprises contacting the cis and trans isomers of benzimidazole perylene with cyclohexane.
5456998 Photoconductive imaging members containing alkoxy-bridged metallophthalocyanine dimers  
Photoconductive imaging members comprised of an alkoxy-bridged metallophthalocyanine dimer as a charge generator material, wherein said dimer is of the formula C 32 H 16 N 8 MOROMN 8 H 16 C 32...
5453344 Layered imaging members with binder resins  
An imaging member comprised of supporting substrate, a photogenerator layer and a charge transport layer comprised of charge transport molecules dispersed in a resin binder comprised of...
5449580 Organic photosensitive material for electrophotography  
Disclosed is an organic photosensitive material for electrophotography which is characterized by containing a specific diphenoquinone derivative in an organic photosensitive layer of the material....
5449581 Phthalocyanine composition, process for preparing the same, electrophotographic photoreceptor using the same and coating solution for charge generation layer containing the same  
Disclosed are a phthalocyanine composition which comprises having main diffraction peaks at 7.5°, 24.2° and 27.3° of Bragg angles (2θ±0.2°) in an X-ray diffraction spectrum with Cu Kα, a...
5445909 Electrophotographic photoreceptor  
An electrophotographic photoreceptor high in sensitivity and contrast potential after light irradiation is disclosed. The photoreceptor comprises an electroconductive substrate having thereon a...
5441837 Photoconductive imaging members with acetoxymetal phthalocyanines  
An imaging member comprised of an optional supporting substrate, a photogenerator layer, and a charge transport layer, and wherein the photogenerator layer is comprised of acetoxymetal...
5422211 Imaging members with trisazo photogenerating materials  
An imaging member comprised of supporting substrate, a photogenerator layer comprised of trisazo pigments as essentially represented by the formula (I), ##STR1## wherein X and Y are halogen, and Z...
5418101 Photosensitive composition for use in an OPC comprising X-metal free phtholocyamine and a dispersant  
A composition of matter, useful in the production of organic photoconductor devices, comprising a dispersion of X-form metal-free phthalocyanine in an organic liquid containing an effective amount...
5413886 Transport layers containing two or more charge transporting molecules  
An electrophotographic imaging member including a charge generating layer and a charge transport layer, the charge transport layer having two or more charge transporting molecules having ionization...
5405724 Photoconductive imaging members and processes thereof comprising solubilized pigment-lewis acid complexes  
Disclosed is a process for forming thin films of pigment compounds, comprising providing a solubilized pigment-Lewis acid complex contained in an aprotic organic solvent system and coating the...
5403958 Electrophotographic member  
Disclosed is an electrophotographic member containing as a charge transport material a fluorine-containing N,N,N',N'-tetraarylbenzidine derivative which is remarkably excellent in solubility in an...
5401615 Overcoating for multilayered organic photoreceptors containing a stabilizer and charge transport molecules  
An electrophotographic imaging member fabricated by forming on a charge generating layer a first coating including charge transporting molecules dispersed in a solution of a first polymer binder...
5399453 Electrophotograhic photoreceptor  
The invention provides an electrophotographic photoreceptor excellent in various characteristics, especially effectively protected from light fatigue and stable against repeated use. The...
5395722 Electrophotographic photoreceptor and production process thereof  
An electrophotographic photoreceptor is disclosed, which comprises an electrically conductive substrate having formed thereon at least a charge generating layer and a charge transporting layer,...
5384223 Photoconductive imaging members with polymer binders  
A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of photogenerating pigments dispersed in a polystyrene/polyvinyl pyridine (A n -B m ) block...
5378569 Oxytitaniumphthalocyanine hydrate crystal and electrophotographic photoreceptor using said crystal  
Oxytitanium phthalocyanine hydrate crystal and an electrophotographic photoreceptor using said crystal are disclosed. The structural formula of the crystal is TiOPc(H 2 O) n wherein Pc represents...
5376487 Photosensitive member containing specified arylamine compound and electron-accepting compound  
The present invention provides a laminated-type photosensitive member having a photosensitive layer comprising; a charge generating layer and a charge transporting layer having a layer...
5358813 Crystals of chlorogallium phthalocyanine and method of preparing them  
Crystals of chlorogallium phthalocyanine, having distinct diffraction peaks at (i) 7.4°, 16.6°, 25.5° and 28.3°, (ii) 6.8°, 17.3°, 23.6° and 26.9°, or (iii) 8.7° to 9.2°, 17.6°, 24.0°,...
5342719 Imaging members having a hydroxy aryl amine charge transport layer  
An electrophotographic imaging member including a charge generating layer, a charge transport layer with charge transport molecules and as sensitizing additive or dopant a hydroxy derivative of the...
5338636 Dichlorotin phthalocyanine crystal electrophotographic photoreceptor using the same, and coating composition for electrophotographic photoreceptor  
A novel dichlorotin phthalocyanine crystal having distinct diffraction peaks at 8.5°, 11.2°, 14.5°, and 27.2° of the Bragg angles (2θ±0.2) in the X-ray diffraction spectrum; process for...
5324606 Electrophotographic photoreceptor  
An electrophotographic photoreceptor comprising a conductive substrate having thereon a photosensitive layer as the uppermost layer, in which the photosensitive layer contains two charge...
5316880 Photoreceptor containing similar charge transporting small molecule and charge transporting polymer  
An electrophotographic imaging member including a charge generating layer and a charge transport layer, the charge transport layer including a charge transporting small molecule dissolved or...
5312707 Electrophotographic photoconductor and diamine compounds for use in the same  
An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon including a diamine compound of formula (I): ##STR1## wherein R 1 ...
5272031 Benzidine derivative and photosensitive material using said derivative  
The present invention provides a benzidine derivative of the following general formula (1). This derivative is excellent in photostability. Accordingly, when this derivative is contained in a...
5264312 Charge transporting layers formed from curable compositions  
A process for preparing a photoreceptor by forming a coating of a substrate followed by curing. The coating contains an electroactive material dissolved or dispersed in a polymerizable film forming...
5248580 Photoconductive imaging members with ladder polymers  
A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of a ladder polymer selected from the group consisting of those represented by the following...
5244761 Imaging members with fluorinated trisazo photogenerating materials  
An imaging member comprised of supporting substrate, a photogenerator layer comprised of fluorinated trisazo pigments as essentially represented by the formula ##STR1## wherein X is halogen, i.e....
5242774 Photoconductive imaging members with fluorinated polycarbonates  
An abrasion resistant photoconductive imaging member comprised of a supporting substrate, a photogenerating layer and a charge transport layer comprised of charge transport components dispersed in...
5215844 Photoconductive imaging members with polyhydroxy ether binders  
A photoconductive imaging member comprised of a photogenerating layer comprised of a photogenerating pigment or pigments dispersed in a linear phenoxy resin with a weight average molecular weight...
5213924 Electrophotographic photoreceptor containing polycarbonate resin as binder resin  
Electrophotographic photoreceptors which are free of the whitening (gelation) of coating solutions during production thereof and maintain high mechanical strength, high surface hardness and...
5206103 Photoconductive imaging member with a charge transport layer comprising a biphenyl diamine and a polysilylane  
A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of a mixture of a biphenyl diamine and a polysilylene.
5204201 Polymeric systems for overcoating organic photoreceptors used in liquid development xerographic applications  
An improved organic photoreceptor is disclosed which is coated with a clear polymer film to prevent aromatic amine transport molecule leakage and binder cracking when exposed to liquid toner...
Matches 101 - 150 out of 260 < 1 2 3 4 5 6 >